Publications
This is a list of publications written by Patuxent employees since Patuxent opened in 1939. To search for Patuxent's publications by author or title, please click below to go to the USGS Publication Warehouse.
Filter Total Items: 8283
Seasonal variability in macroinvertebrate assemblages in paired perennial and intermittent streams in Costa Rica
Ecological effects of flooding and drying events are relatively understudied in the Neotropics and less is known about these hydrological extremes in intermittent streams. Neotropical headwater streams in Costa Rica provide opportunities to evaluate the response of macroinvertebrate communities to seasonal changes in flow regime in relatively human undisturbed systems. We quantified the effects of
Authors
Darixa D Hernandez-Abrams, Scott Connelly, Mary Freeman, Pablo E. Gutierrez-Fonseca, Seth J. Wenger
Multi-omics responses in tree swallow (Tachycineta bicolor) nestlings from the Maumee Area of Concern, Maumee River, Ohio
A multi-omics approach was utilized to identify altered biological responses and functions, and to prioritize contaminants to assess the risks of chemical mixtures in the Maumee Area of Concern (AOC), Maumee River, OH, USA. The Maumee AOC is designated by the United States Environmental Protection Agency as having significant beneficial use impairments, including degradation of fish and wildlife p
Authors
Chi Yen Tseng, Christine M. Custer, Thomas W. Custer, Paul Dummer, Natalie K. Karouna-Renier, Cole W. Matson
Hurdles to developing quantitative decision support for Endangered Species Act resource allocation
The U.S. Fish and Wildlife Service oversees the recovery of many species protected by the U.S. Endangered Species Act (ESA). Recent research suggests that a structured approach to allocating conservation resources could increase recovery outcomes for ESA listed species. Quantitative approaches to decision support can efficiently allocate limited financial resources and maximize desired outcomes. Y
Authors
Gwenllian D. Iacona, Stephanie Avery-Gomm, Richard F. Maloney, James Brazill-Boast, Deborah T. Crouse, C Ashton Drew, Rebecca S. Epanchin-Niell, Sarah B. Hall, Lynn A. Maguire, Tim Male, Jeff Newman, Hugh P. Possingham, Libby Rumpff, Michael C. Runge, Katherine C B Weiss, Robyn S. Wilson, Marilet A. Zablan, Leah R. Gerber
Use of regional breeding bird surveys to estimate bird populations in Big Thicket National Preserve
We used data collected during surveys of seven North American Breeding Bird Survey routes in eastern Texas to estimate avian populations within Big Thicket National Preserve. On only 61 of the 350 count locations located along these routes did observers monitor birds within the boundaries of this preserve. On selected routes, we recorded initial bird detections during the 3-min bird count within 1
Authors
Daniel J. Twedt, Clifford E. Shackelford
Hepatic gene expression profiling of American kestrels (Falco sparverius) exposed in ovo to three alternative brominated flame retardants
A number of brominated flame retardants (BFRs) have been reported to interfere with the thyroid signaling pathway and cause oxidative stress in birds, yet the underlying shifts in gene expression associated with these effects remain poorly understood. In this study, we measured hepatic transcriptional responses of 31 genes in American kestrel (Falco sparverius) hatchlings following in ovo exposure
Authors
Christopher G. Goodchild, Natalie K. Karouna-Renier, Ryan P. Braham, Paula F. P. Henry, Robert J. Letcher, Kim J. Fernie
Range-wide sources of variation in reproductive rates of northern spotted owls
We conducted a range-wide investigation of the dynamics of site level reproductive rate of northern spotted owls using survey data from 11 study areas across the sub-species geographic range collected during 1993–2018. Our analytical approach accounted for imperfect detection of owl pairs and misclassification of successful reproduction (i.e., at least one young fledged) and contributed further in
Authors
Jeremy T. Rockweit, Julianna M Jenkins, James E. Hines, James D. Nichols, Katie Dugger, Alan B. Franklin, Peter C. Carlson, William L. Kendall, Damon B. Lesmeister, Christopher McCafferty, Steven H. Ackers, L. Steven Andrews, Larissa Bailey, Jesse Burgher, Kenneth P. Burnham, Tara E. Chestnut, Mary M Conner, Raymond J. Davis, Krista E. Dilione, Eric D. Forsman, Elizabeth M. Glenn, Scott A. Gremel, Keith A. Hamm, Dale R. Herter, J. Mark Higley, Rob B. Horn, David W Lamphear, Trent L. McDonald, Janice A Reid, Carl J. Schwarz, David C. Simon, Stan G Sovern, James K. Swingle, David Wiens, Heather Wise, Charles B. Yackulic
Using surrogate insects in acid bioassays for development of new controls for Varroa destructor (Arachnida: Varroidae)
Resistance to traditional synthetic compounds by Varroa destructor Anderson and Trueman and shortcomings of the organic acid class of acaracides commonly used in varroa management requires continual development of new controls. V. destructor, however, are difficult to obtain for use in control bioassays because they are obligate parasites that cannot be easily reared outside of a honey bee colony.
Authors
Julia Vieira, Casey L. Johnson, Elizabeth M. Varkonyi, Howard Ginsberg, Kassie Picard, Mattew Kiesewetter, Steven R. Alm
Vote-processing rules for combining control recommendations from multiple models
Mathematical modelling is used during disease outbreaks to compare control interventions. Using multiple models, the best method to combine model recommendations is unclear. Existing methods weight model projections, then rank control interventions using the combined projections, presuming model outputs are directly comparable. However, the way each model represents the epidemiological system will
Authors
William JM Probert, Sam Nicol, Matthew J. Ferrari, Shou-Li Li, Katriona Shea, Michael J. Tildesley, Michael C. Runge
Winter severity affects occupancy of spring- and summer-breeding anurans across the eastern United States
AimClimate change is an increasingly important driver of biodiversity loss. The ectothermic nature of amphibians may make them particularly sensitive to changes in temperature and precipitation regimes, adding to declines from other threats. While active season environmental conditions can influence growth and survival, effects of variation in winter conditions on population dynamics are less well
Authors
Sarah R. Weiskopf, Alexey N. Shiklomanov, Laura Thompson, Sarah Wheedleton, Evan H. Campbell Grant
Optimizing survey design for shasta salamanders (Hydromantes spp.) to estimate occurrence in little-studied portions of their range
Shasta salamanders (collectively, Hydromantes samweli, H. shastae, and H. wintu; hereafter, Shasta salamander) are endemic to northern California in the general vicinity of Shasta Lake reservoir. Although generally associated with limestone, they have repeatedly been found in association with other habitats, calling into question the distribution of the species complex. Further limiting our knowle
Authors
Brian J. Halstead, Patrick M. Kleeman, Graziella Vittoria Direnzo, Jonathan P. Rose
Early treatment of white-nose syndrome is necessary to stop population decline
Since its introduction to North America, white-nose syndrome has been associated with declines greater than 90% in several bat species, prompting the development of treatments to reduce disease-related mortality. As treatment application is scaled up, predicting responses at the population level will help in the development of management plans.We develop a model allowing for the implementation of
Authors
John Forrest Grider, Wayne E. Thogmartin, Evan H. Campbell Grant, Riley F. Bernard, Robin E. Russell
Museum genomics provide evidence for persistent genetic differentiation in a threatened seabird species in the Western Atlantic
Connectivity among wildlife populations facilitates exchange of genetic material between groups. Changes to historical connectivity patterns resulting from anthropogenic activities can therefore have negative consequences for genetic diversity, particularly for small or isolated populations. DNA obtained from museum specimens can enable direct comparison of temporal changes in connectivity among p
Authors
Paige A. Byerly, R. Terry Chesser, Robert C. Fleischer, Nancy McInerney, Natalia Przelomska, Paul S Leberg